Phonograph-stop.



F. NOLA N. PHONOGRAPH STOP- APPLICATION FILED AUG-61 1915- 1,230,763. Patented June 19, 1917.

FRANCES A. NOLAN, OF ST. lPAUL, MINNESOTA.

I PHONOGRAPH-STOP.

Specification of Letters Patent.

Patented June re, 1917.

Application filed August 6, 1915. Serial No. 44,028.

cation.

The primary object of this invention is the production of a simple and inexpensive stop which. can be easily and quickly attached to or detached from sound reproducing machines for automatically setting the brake and stopping the rotation of the turn table upon which the recordtablet is carried in'n'nediately when the playing of a record is completed.

More particularly this invention includes modifications of the structure or structures set forth in my companion applications Serial Number 3763 filed January 22, 1915, and Serial Number 36,221, filed June 25, 1915, but not therein specifically claimed.

In the accompanying drawing forming part of this specification, Figure 1 is a plan of my invention; Fig. 2 is a section taken on the line X X, Flg. l; Flg. 3 1s a sec- -tion taken on the line Y Y, Fig. 2; Fig. d is a. plan of a detail'of a sound reproducing machine, part of the structure being broken away and my invention attached in position for use; Figs. 5 and (3 are perspective views of parts of my invention.

In Fig. i of the drawing is shown a conventional type of Edison sound reproducing machine A, or so much thereof as is necessaryv to a full understanding of the manner-in which my invention is to be attached and used therewith. In-this figure, the numeral 1 indicates the turn table, 2 the brake which comprises a hand operable brake setting arm 3 extending outwardly from below the turn table 1 and the usual brake shoe at, the hubgof the brake being pivotally mounted within tllLzlYHlClllllG at 5 and being provided with a notch G in its periphery as shown. A brake releasing member 7 of usual construction is pivotally mounted at 8 between its ends andthe eX- tremity 9 thereof is provided with tooth 10 adapted to engage within the notch 6 formed in the hub of the brake to hold the brake shoe removed from frictional engagement with the turn table. A helical spring 11 is secured at one of its ends to the brake arm 3 and at its other end to a suitable portion of the casing of the machine, the

"object of this spring being to retain the brake shoe in contact with the table; while one end of a similar spring 12 is secured to the brake releasing member 7 and the other end thereof tothe casing, so as to hold the tooth 10 constantly in contact with the hub 5 of the brake. The machine is further provided with a revoluble member or shaft 13 having flattened surfaces upon which my improved stopping device is adapted for securance as will appear. It will be understood that the shaft 13 is op erabiy connected with a movable part' of any mechanism to-which my invention is I applicable for use and-in the manner more specifically pointed out in my co-pending application for stops, filed June 25, 1915 Serial Number 36,221, so that the shaft is turned in synchronism with the movement of the sound box (not shown) in theusual manner.

In the drawings, Figs. 1 to 6 inclusive, show the preferred form of my device,

support in the form of a lower arm 14: and an upper arm 15, said arms being adapted to be rigidly held in substantial alinement or angularly' adjusted with respect to one another by means of a. screw 16. A suitably shaped opening 17 is formed in the lower arm 11 whereby the device may be op wherein B represents a two piece base or erably attached to the shaft 13 as desired.

The upper arm 15 comprises a plate having up-standing lugs 19, on either of its 4 side edges, in transverse alinement and a closure member 20 adapted tobe secured by a screw 18, or other suitable means upon one face of the plate, the lugs of which plate intersect cut out portions 21 in the side walls 22 of the closure member, and extend across an elongated groove 23 formed in a striker member 24 to guide the same, said member being adapted for reciproca tion within and through the cut out portions in the walls of the closure member. The reciprocable member is provided on one of its longitudinal edges with rackteeth 25 intermeshing with the teeth of a pinion 2G revolubly mounted on a shaft 27 rigidly secured on the plate and extending beyond the outersurface of the closure member and carrying at its outermost end an indicating finger 28. Disposed about the extended portion of the sh? rt 27 is a revoluble sleeve 29 to the outer end of which is attached or secured a graduated dial 230 in close proximity to-the stationary indicating finger,28, the sleeve at its inner end being secured to the pinion 26 for movement therewith.

On the other longitudinal edge of the reciprocable striker member 24 is formed another set of rack teeth 31 which are engaged by a spring retarding pawl 32 to retain the same in 1ts different adjusted positions. The memberQ l terminates in a suitably shaped contact end 33, the object of which will hereafter appear.

The operation of the mechanism is as follows: When a record is placed on the table and the length of the record is determined by a suitable symbol or indication which may be placed thereon, the striker member 24! is moved in the proper direction until the dial is turned so that the finger registers with the desired number. The con tinuous movement of the mechanism is imthrough its connection with the revoluble shaft 13 and the striker member 24 advanced toward thebrake releasing member 7 with which its end '33 eventually impinges or resses to release and throw the brake shoe t 1nto frictional-contact with the turn table and thus stop further movement of the same.

The advantages of my device as above described will be apparent to those skilled in the art to which it'refers. The operator merely has to place the record upon the turn table, adjust the member 24; in the manner described, and the record may then be reproduced without further attention on the part of the operator. In devices of this character, it is very essential to successful operation, that the stop mechanism be of such a nature as to permit it to conform to.

and so overcome defects of workmanship, natural wear on the parts, and the like. This I accomplish by providing a supporting member for attachment to therevolub. e shaft, such member consisting of two arms which are primarily adjusted to the particu lar machine with which the device is to be used and thereafter held in such adjustment by means of the screw 16. To facilitate setting the dial in proper position so that the trfble will stop the instant the playing of a record is completed, the records are preferablynumbered or marked according to the length 'of their sound grooves or sizes to cor IiQSPOIld with the proper marking on the c ial.

In accordance with the patent statutes, I have described'the principles of operation of my invention, together with the apparatus which I now consider to represent the best embodiment thereof, but I desire to have it understood that the construction shown is only illustrative, and that the invention can be carried out by other means and applied to uses otlzer than those above set cured adjacent one of its ends to said traveling element for movement thereby, said sup;- port comprising membershaving their adjacent ends pivotally secured together and adapted to be retained in a multiplicity ofangles with respect. to one another, and 30 means journaled upon'the outermostmember of said support for relative ad ustment with respect thereto adapted to impinge against and set said brake mechanism atn predetermined time.

2. The combination in a sound reproducing machine having a traveling element, a turn table and brake mechanism to prevent .the table from revolving, of a support secured adjacent one of its ends to said traveling element for movement thereby, a member journaled upon the other end of said support for relative adjustment with respect. thereto, and a device carried by said member for a multiplicity of axial adjustments with respect thereto adapted to impinge against and set said brake mechanism at a predetermined time. 3. The combination in a sound reproducing machine having a traveling element, a turn table and brake mechanism to prevent the table from revolving, of a support secured adjacent one of its ends to said traveling element for movement thereby, a' member journaled upon the other end of said support for relative adjustment with respect thereto, a spool revoluble about its axis upon said member, and means reciprocably mounted upon said member for operation by the lower end of said spoolto impinge against and set said brake mechanism at a predetermined time.

4, The combination in a sound reproducing machine having a traveling element, a turn table and brake mechanism to prevent the table from revolving, of a su port removably secured at one of its en s to said traveling element for movement thereby, a member j ournaled upon the other end of said support for relative adjustment with respect thereto, a spool revoluble about its axis upon said member, said spool having a toothed pinion, and a striker arm having rack teeth on one of its longitudinal edges meshing with said toothed pinion whereby said 125 5. The combination in a sound reproducing machine having a traveling element, a

turn table and brake mechanism to prevent the table from revolving, of a support reinovably secured at one of its ends to said traveling element for movement thereby, a member journaled upon the otherend of said support for relative adjustment with respect thereto, aspool revoluble about its axis upon said member, said spool having a toothed pinion, a striker arm having rack 10 teeth on one of its longitudinal edges 1neshmg with said toothed pinion whereby said strikerarm n1aV be adiustablv reciprocated to impinge against and set said brake mechanism at a predetermined time, and means associated with said striker arm for retain- 1% ing' it in selected position.

In testunony whereof, name to this specification.

FRANCIS A. NOLAN.

I have signed my 

